Cold compress is a commonly used physical therapy method, which mainly plays the roles of cooling, analgesia, hemostasis, anti-inflammation and so on. In the clinical application of cold compress treatment, according to different conditions and the patient’s own conditions to determine the time of cold compress, generally each time the cold compress time for 20-30 minutes, 3-4 hours once. Acute trauma patients should be used within 48 hours after the injury, after the use of attention should be paid to the observation of local skin color changes, feel any abnormalities, etc., such as abnormalities should stop using. In the treatment of certain primary diseases, due to high fever caused by secondary diseases, drug treatment is not ideal and the use of cold compresses and other auxiliary treatment, can obtain satisfactory results, while cold compresses can also be used for the treatment of localized acute injury of the limb. Cold compress is to ice or ice water into the ice bag, ice cap, ice capsule, or cold water towel refrigerated, placed on the surface of a certain part of the body to treat, can be placed on the forehead, neck, armpits, groin, and the surface of the swelling and local inflammation, to achieve the purpose of cooling, swelling, analgesia, hemostasis and other therapeutic purposes. Cold compress is mainly through the local cooling and vasoconstriction, slowing down the blood flow rate, adjusting the blood viscosity, so that the oozing is reduced, slowing down the nerve conduction, reducing pain, but also inhibit cellular activity, reduce the cell metabolic rate and bacterial vitality. Therefore, cold compress has the effect of reducing local congestion and bleeding, reducing local pain, controlling the spread of inflammation as well as cooling.